希腊于2020年7月1日开放入境点,为海上抵达的旅客提供了具体指南,空气或土地。本文的目的是研究旅游业对受欢迎的希腊克里特岛在疫苗接种前时期(2020年6月至12月)2019年冠状病毒病(COVID-19)大流行的长期过程的影响。为了实现这一点,横断面血清调查,每月重复一次,进行比较克里特岛的血清阳性率与希腊大陆的血清阳性率。克里特岛在2020年夏季接待了近200万旅客。从希腊的公共和私人实验室收集并获得剩余的血清样本,包括克里特岛.测试这些样品是否存在抗SARS-CoV-2IgG抗体。共收集了55,938份样本,其中3,785起源于克里特岛。在克里特岛,血清阳性率介于0%(2020年6月)和2.58%(2020年12月)之间,而希腊相应的血清阳性率为0.19%和10.75%,分别。在2020年12月,我们发现克里特岛(2.58%)的血清阳性率比希腊大陆(10.75%)低4.16倍。此外,克里特岛的月感染病死率(IFR)计算为0.09%,而2020年12月希腊大陆为0.21%。克里特岛的血清阳性率比希腊大陆低四倍多,尽管是一个非常有吸引力的旅游目的地。这一证据支持这样一种观点,即旅游业可能不会影响希腊新冠肺炎大流行的长期进程。然而,由于与先前研究的结果相矛盾,需要进一步调查。
Greece opened its points of entry on July 1, 2020, with specific guidelines for travellers arriving by sea, air or land. The aim of this article is to examine the effect of tourism on the long term course of the Coronavirus Disease 2019 (COVID-19) pandemic during the pre-vaccination era (June to December 2020) on the popular Greek island of
Crete. To achieve this, a cross-sectional serosurvey, repeated at monthly intervals, was conducted to compare the seroprevalence in Crete with seroprevalence in the mainland of Greece.
Crete welcomed nearly 2,000,000 travellers during the 2020 summer season. Left-over serum samples were collected and obtained from public and private laboratories located in Greece, including the island of Crete. These samples were tested for the presence of anti-SARS-CoV-2 IgG antibodies. A total of 55,938 samples were collected, 3,785 of which originated from
Crete. In Crete, the seroprevalence ranged between 0% (June 2020) and 2.58% (December 2020), while the corresponding seroprevalence in Greece was 0.19% and 10.75%, respectively. We identified 4.16 times lower seropositivity in
Crete (2.58%) in comparison with the mainland of Greece (10.75%) during December 2020. Moreover, the monthly infection fatality rate (IFR) in Crete was calculated at 0.09%, compared with 0.21% in mainland Greece for December 2020. The island of
Crete presented more than four times lower seroprevalence than the mainland of Greece, despite being a highly attractive tourist destination. This evidence supports the idea that tourism may not have affected the long term course of the COVID-19 pandemic in Greece. However, due to contradicting results from previous studies, further investigation is needed.